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Phenotypic analyses of a medaka mutant reveal the importance of bilaterally synchronized expression of isthmic fgf8 for bilaterally symmetric formation of the optic tectum
https://repo.qst.go.jp/records/45307
https://repo.qst.go.jp/records/45307a2718817-5729-4d70-a9ad-c4e5cc8ed5b4
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-10-28 | |||||
タイトル | ||||||
タイトル | Phenotypic analyses of a medaka mutant reveal the importance of bilaterally synchronized expression of isthmic fgf8 for bilaterally symmetric formation of the optic tectum | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Takashima, Shigeo
× Takashima, Shigeo× Kage, Takahiro× Yasuda, Takako× Inohaya, Keiji× Maruyama, Kouichi× Araki, Kazuo× Takeda, Hiroyuki× Ishikawa, Yuuji× 景 崇洋× 丸山 耕一× 石川 裕二 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Developing neural tubes are bilaterally symmetric in all vertebrate embryos, irrespective of the presence of gene networks that generate left-right asymmetry. To explore the mechanisms that underlie the bilaterally symmetric formation of the neural tube, we examined a medaka (Oryzias latipes) dominant mutant, Oot, the neural tube of which transiently lacks normal symmetry in the optic tectum. We found that spatial changes in isthmic fgf8 expression do not occur on one side of the mutant, resulting in a transient desynchronized expression that correlates with tectal asymmetry. The application of exogenous FGF8 on one side of a wild-type embryo mimics the Oot phenotype, indicating that the bilaterally equivalent expression of isthmic fgf8 is crucial for the bilaterally symmetric development of the tectum. These results suggest that tectal symmetry is not a default state, but rather is maintained actively by a bilaterally coupled and synchronized regulation of isthmic fgf8 expression. | |||||
書誌情報 |
Genesis 巻 46, 号 10, p. 537-545, 発行日 2008-10 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1526-954X |